Here are the steps I’m using to explore the Properties and Methods of the SP.* Namespaces:

• Navigate to a SharePoint 2010 Blank Site
• Click on the Page tab (to load Fluent UI JavaScript files)
• Press F12 to launch the IE Dev Toolbar
• Click on the Script tab
• Press the Start Debugging button (do this before you set the breakpoint)
• Select the ScriptResource.axd file that includes MicrosoftAjax.debug.js in its header
• Search for: _onReadyStateChange
• Set a breakpoint on the first statement in this function (line 4708 in my build)
• Refresh the Page in the browser to run code to the breakpoint (be patient while it spins up)
• Click the Watch tab
• Click the Click to add... textbox
• Type SP and press <Enter>
• Explore...

Way easier than dinking around in the debug.js files!

<Todd />